package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@Slf4j
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;


    @PostMapping
    @ApiOperation("新增菜品")
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品:{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);

        /*//清理缓存数据
        //构造key
        String key = "dish_" + dishDTO.getCategoryId();
        redisTemplate.delete(key);*/
        String key = "dish_" + dishDTO.getCategoryId();
        clearCache(key);
        return Result.success();
    }

    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询:{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    // 批量删除
    @DeleteMapping
    @ApiOperation("批量删除")
    public Result delete(@RequestParam List<Long> ids){
        log.info("批量删除:{}", ids);
        dishService.deleteBatch(ids);
        /*//可能涉及到缓存中的多个key，所以直接全部删除
        //删除时不能识别dish_*，所以先调用redisTemplate.keys("dish_*")，查询所有以dish_开头的key，然后删除
        Set keys = redisTemplate.keys("dish_*");
        //删除时支持传入集合，批量删除
        redisTemplate.delete(keys);*/
        clearCache("dish_*");
        return Result.success();
    }

    //根据ID查询菜品
    @GetMapping("/{id}")
    @ApiOperation("根据ID查询菜品")
    public Result<DishVO> getById(@PathVariable Long id){
        log.info("根据id查询菜品:{}", id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    //修改菜品
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);

        /*//修改菜品时，如果修改的为分类，可能涉及两个key，所以直接删除所有
        //可能涉及到缓存中的多个key，所以直接全部删除
        //删除时不能识别dish_*，所以先调用redisTemplate.keys("dish_*")，查询所有以dish_开头的key，然后删除
        Set keys = redisTemplate.keys("dish_*");
        //删除时支持传入集合，批量删除
        redisTemplate.delete(keys);*/

        clearCache("dish_*");

        return Result.success();
    }
    //根据分类id查询菜品数据
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品数据")
    public Result<List<Dish>> list(Long categoryId){
        log.info("根据分类id查询菜品数据：{}", categoryId);
        List<Dish> list = dishService.list(categoryId);
        return Result.success(list);
    }

    //菜品起售停售
    @PostMapping("/status/{status}")
    @ApiOperation("菜品起售停售")
    public Result startOrStop(@PathVariable Integer status, Long id){
        log.info("菜品起售停售：{}，{}",status,id);
        dishService.startOrStop(status,id);

        /*//删除时不能识别dish_*，所以先调用redisTemplate.keys("dish_*")，查询所有以dish_开头的key，然后删除
        Set keys = redisTemplate.keys("dish_*");
        //删除时支持传入集合，批量删除
        redisTemplate.delete(keys);*/

        clearCache("dish_*");

        return Result.success();
    }

    //统一抽取清理缓存数据方法
    public void clearCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
